Publications by authors named "Hamada S"

Many older adults who are certified for long-term care services live or stay in long-term care facilities (LTCFs), where they receive medical and nursing care. These individuals often encounter medication-related problems, such as polypharmacy and complex medication regimens, including frequent administration schedules. Although considerable attention has been paid to polypharmacy in the context of optimizing medication use in older adults, little emphasis has been placed on simplifying these regimens.

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Background: Although sex differences in the prevalence of sleep disordered breathing (SDB) is recognized, whether a sex difference exists among obese individuals with SDB with or without comorbidities has not been well investigated. This study aimed to explore the relationships of sex differences among SDB, obesity, and metabolic comorbidities.

Methods: This study evaluated 7713 community participants with nocturnal oximetry ≥2 nights.

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Background: The patients taking direct oral anticoagulants (DOACs) are at high risk for developing ischemic stroke and delayed bleeding in upper gastrointestinal endoscopic submucosal dissection (ESD). We aimed to identify the optimal DOAC based on both adverse events in upper gastrointestinal ESD.

Methods: A retrospective population-based cohort study was conducted using the Diagnosis Procedure Combination database in Japan.

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In this study, we aimed to investigate the current genetic diversity and provide additional insights into the origins of the Algerian population by analyzing the frequencies of HLA -A,-B,-DRB1,-DQB1 alleles and associated haplotypes. We analyzed 1,082 unrelated healthy Algerian individuals, who were potential kidney donors, recruited and assessed in the Immunology Department of CHU Mustapha in Algiers over a 10-year period (2009-2019). HLA genotyping was performed by Polymerase Chain Reaction Sequence Specific Primers (PCR-SSP).

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Although endoscopic balloon dilation (EBD) is a common therapeutic approach for managing strictures associated with Crohn's disease (CD), the clinical application and complication rates of EBD remain unclear. We collected admission data for patients who underwent EBD using a nationwide database. We compared EBD outcomes between ileal and colonic strictures, CD and ulcerative colitis, and CD and anastomotic strictures arising from cancer-related surgery.

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  • * The patient group consisted of nearly equal numbers of men and women, with a mean age of 62 years, and the UE procedures were performed by various types of surgeons, including plastic, orthopedic, and general surgeons.
  • * Results showed high rates of inappropriate surgical techniques, with many patients requiring re-excisions and subsequent soft-tissue reconstruction, highlighting the need for improved education on sarcoma management for all surgeons.
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Background: Production of extended-spectrum β-lactamases (ESBLs) is a common resistance mechanism in Enterobacteriaceae, leading to serious hospital-acquired infections. This study aimed to assess phenotypic, phylogenetic, and antibiotic resistance patterns among ESBL-producing Escherichia coli isolates recovered from two rural tertiary hospitals in Thailand.

Results: Among 467 Enterobacteriaceae isolates, E.

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Objectives: Housing adaptations may contribute to aging in place for older adults with care needs by reducing the risk of long-term care facility (LTCF) admissions, but this association remains unclear. We examined the association between housing adaptations and LTCF admissions among older adults with care needs.

Design: Retrospective cohort study using data from a Japanese municipality.

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This study searched for volatile organic compounds (VOCs)having antibacterial and antiviral efficacy. The antibacterial efficacy of volatilized components was evaluated and (2E,4E)-2,4-hexadienal, α- angelica lactone, 2-cyclohexen-1-one and 2-cyclopenten-1-one were found to inhibit the formation of colonies of Staphylococcus aureus and Escherichia coli. Evaluating the antimicrobial efficacy of the surfaces to which each VOC adhered to, these four compounds were revealed to have antibacterial efficacy (antibacterial activity value (A-value)against S.

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The repeated dose liver micronucleus (RDLMN) assay has been sufficiently validated in terms of the numbers and types of chemicals studied. However, it remains unclear whether aging affects assay results. The OECD Test Guideline 407 (Repeated Dose 28-Day Oral Toxicity Study in Rodents) indicates that dosing should begin as soon as feasible after weaning and in any event before 9 weeks of age.

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Introduction: Our aim was to evaluate the visual and refractive outcomes of iris-fixated phakic toric intraocular lenses (IOLs) for visual rehabilitation in eyes with stable corneal ectasia.

Methods: We conducted a study looking at the clinical outcomes of iris-fixated toric IOLs (Artisan) in 33 eyes of 27 patients diagnosed with mild-to-moderate corneal ectasia at a single center (Queen Victoria Hospital, East Grinstead, UK). The main outcome measures were functional improvement [accuracy of post-operative spherical equivalent (SE), astigmatic correction, topographic parameters, uncorrected and corrected distance visual acuity (UCVA, CDVA)] and safety of the procedure: endothelial cell count and intra- and post-operative complications.

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  • * Approximately 17.4% of residents used at least one strong anticholinergic medication, with significant variation across countries (from 1.3% in China to 27.1% in Italy).
  • * The findings indicated higher usage among residents with cognitive impairment and those classified as most frail, suggesting the need for targeted deprescribing to minimize medication-related risks.
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  • Endoscopic pancreatic stenting (EPS) is effective for treating pain in chronic pancreatitis, but there's limited understanding of why pain recurs after stent removal and no clear guidelines for when to remove stents.
  • A study of 95 patients who underwent EPS identified serum lipase level and pancreatic parenchymal thickness as key risk factors for pain recurrence after stent removal.
  • A prediction model based on these risk factors was developed, demonstrating good ability to predict pain recurrence which could aid in making informed decisions regarding pancreatic stent management.
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  • NK cells often lose their function during tumor development, but the reasons for this are not fully understood.
  • In mouse lymphoma models, the activation of NK cells led to changes resembling T cell exhaustion, including the expression of immune checkpoint proteins, but dysfunction occurred only in the activated NK cell group.
  • Importantly, NK cell dysfunction can be reversed by stopping the stimulation and is positively influenced by interleukin-15, indicating that the dysfunction is a dynamic and reversible process not directly linked to immune checkpoint protein expression.
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Background: Di(2-ethylhexyl) phthalate (DEHP) is a plasticizer commonly used in a wide variety of products, including medical devices. It is rapidly metabolized in the liver into various metabolites upon absorption through oral ingestion, dermal absorption, and inhalation. DEHP is classified as a non-genotoxic hepatocarcinogen in rodents, as its chronic exposure has been associated with the development of liver cancer in these animals, but most genotoxicity studies have been negative.

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Background: Older adults requiring care often have multiple morbidities that lead to polypharmacy, including the use of potentially inappropriate medications (PIMs), leading to increased medical costs and adverse drug effects. We conducted a cross-sectional study to clarify the actual state of drug prescriptions and the background of polypharmacy and PIMs.

Methods: Using long-term care (LTC) and medical insurance claims data in the Ibaraki Prefecture from April 2018 to March 2019, we included individuals aged ≥ 65 who used LTC services.

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This study aimed to clarify patient characteristics regarding medication-taking behaviors, their understanding of medication instructions and specific medication management for older adults who initiated visiting pharmacist services. By analyzing long-term care certification data, participants using visiting pharmacist services required more medication-taking support and had a poorer understanding of daily schedules.

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  • The study investigates the use of pose estimation algorithms to distinguish between Parkinson's disease (PD) and spinocerebellar degeneration (SCD) through video analysis of patient gait.
  • Researchers recorded 82 PD patients and 61 SCD patients during a mobility test and utilized a deep neural network model trained on gait data to make predictions on the neurological disorder.
  • Results indicated high accuracy (0.86), sensitivity (0.94), and specificity (0.75) for differentiating PD from SCD, suggesting this method could be valuable in clinical settings and telemedicine for improved patient assessment.
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  • A recent study investigated the genomic features of mobile colistin-resistant genes (mcr) in carbapenem-resistant Enterobacterales (CRE) from clinical isolates collected between 2015 and 2020, focusing on K. pneumoniae and K. quasipneumoniae.
  • The isolates were identified as K. pneumoniae (CRKP) ST147 carrying mcr-8 and K. quasipneumoniae (CRKQ) ST476 carrying mcr-9, both exhibiting significant resistance to colistin and including additional resistance genes.
  • The findings underscore the necessity for enhanced surveillance and rational drug usage to combat the rising threat of mcr-carrying CRE.
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Anterior lamellar keratoplasty (ALK) is a less invasive procedure than PK, and thus avoids many of the intraocular complications associated with PK. DALK can be performed using several different techniques, with either a manual dissection, a keratome or femtosecond-laser assisted dissection, or with a big bubble technique. To analyse the outcomes and compare the results of three deep anterior lamellar keratoplasty (DALK) techniques.

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We present the case of a 65-year-old man with bilateral keratoconus and history of bilateral penetrating keratoplasty (PK) who developed gradual visual decline in the left eye due to cataract formation. Following successful left eye cataract surgery and monofocal, non-toric intraocular lens (IOL) in-the-bag implantation, the patient experienced persistently low uncorrected distance visual acuity (UDVA) due to high residual refractive error and intolerance to contact lenses. A supplementary toric IOL was placed in the ciliary sulcus, but subsequent rotational instability of the lens required repeated realignment.

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  • The study aimed to explore how telecommuting affects sleep quality based on whether workers' telecommuting preferences match their actual frequency of working from home.
  • Researchers collected survey data from over 33,000 Japanese workers, focusing on 9,425 who answered follow-up questions, to assess their sleep quality using the Athens Insomnia Scale.
  • Results indicated that workers who preferred telecommuting experienced a significantly higher risk of insomnia if they telecommuted less frequently, particularly those telecommuting less than once a week.
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